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ALBERT A. DAILEY.

Improvement in Plow Clevis.

N0.124,339. I Patented March5,1872.

W Z71 warez)" I i 3 /1 AM. mora-umbcmPH/o m n y 0550mm hams) UnrrnnS'ra'rns ALBERT A. DAILEY, OF WILSON, NEW YORK.

IMPROVEMENTS IN PLOW-*CLEVISES.

Specification forming part of Letters Patent No. 124,339, dated March 5,I872.

To all whom it may concern: I

Be it known that I, ALBERT A. DAILEY, of YVilson, in the county ofNiagara and State of New York, have invented certain new and usefulImprovements in Glevises for Holding Flows; and I do hereby declare thatthe followin g is a full, clear, and exact description there of,reference being had to the accompanying drawing and to the letters ofreference marked thereon which form a part of this specification.

The nature of my-invention consists in the construction. and arrangementof a clevis for plows, as will be hereinafter more fully set forth.

In order to enable others skilled in the art to which my inventionappertains to make and use the same, I will now proceed to describe itsconstruction and operation, referring to the annexed drawing, in whichFigure 1 is aplan view of the entire clevis. Fig. 2 is a side view ofthe washers. Fig. 3 is a rear view of one of the washers; Fig. 4, afront view of the other 5 and Fig. 5, a side view of the front portionof the clevis.

A A represent the jaws or side pieces fastening to the end of theplow-beam, and connected at their front ends by a cross-bar, B. In frontof this cross-bar is a frame, 0, with a round hole through its frontpart, and provided with three tongues, a a, one on each side and onebelow the hole mentioned, all of said tongues extending inward. The jawsor side pieces, cross-bar, and frame with tongues are all cast in onepiece. The tongues a a fit in corresponding grooves made in the washersD and E, which are placed within said frame, and provided with centralholes, the hole in the washer D being round, while that in the washer Eis square. The washers D and E have two or more sets of tongues andgrooves, b b,- as shown in Figs. 3 and 4, so that they may be turnedeither to the right or left, and still fit on the tongues a a. Grepresents the plate, to which the whiffletree is attached, providedwith a rod, H, extending through the hole in the frame 0 and the washersD E, and fastened by a nut, I, on its extreme rear end, that part ofsaid rod which passes through the washer E being square to tit the holein the same. When the washers are drawn together and up on the tongues aa by the draft on the plate G, the clevis and-plow must remain at theangle fixed by this apparatus. running of the plow is to be changed thewashers are to be removed from the frame by turning the nut I off fromthe rod H, and then changing the washer D into the frame in the grooves,as desired. The nut is then replaced and sustains the draft which fixedthe washers together firmly by the groove and tongue d between them ontheir adjoining surfaces. The apparatus for hitching the team consistsof a hasp, J, pivoted at its inner end to a post, K, rising from theinner end of the plate G, and perforated at its outer end by ahole toreceive a pin that passes through the double whiffletree in the holes inthe plate G. This pin is changed to therightand left in the holes insaid plate to alter the width of the furrow desired, and the depth ofthe furrow is regulated by fixing the cross-bar B in notches upon theends of the plow-beam. These notches are uniformly upon the iron beamsof plows, and are to be fastened upon wooden beams, if not alreadythere, on an iron plate. In turning the plow at the ends of the plowedland, the washers are thrown out of gear by the teams slackening itsdraft, leaving the plow to turn freely.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is

1. The washers D E, provided with tongues and grooves 12 b on theirsides, and d on their adjoining surfaces, and with central holes, thatin the washer I) being round, and in E square, all substantially as andfor the purposes herein set forth.

2. The combination of the frame G with Then the

